[Init] Initial commit - NetMesh terminal manager

application/state/pluginViewScopes.ts

@@ -0,0 +1,31 @@
+const MAX_PLUGIN_VIEW_SCOPE_ID_LENGTH = 256;
+const MAX_INLINE_ROUTE_LENGTH = MAX_PLUGIN_VIEW_SCOPE_ID_LENGTH - 'window:'.length;
+
+function hashRoute(value: string): string {
+  let first = 0x811c9dc5;
+  let second = 0x9e3779b9;
+  for (let index = 0; index < value.length; index += 1) {
+    const code = value.charCodeAt(index);
+    first = Math.imul(first ^ code, 0x01000193);
+    second = Math.imul(second ^ code, 0x85ebca6b);
+  }
+  return `${(first >>> 0).toString(16).padStart(8, '0')}${(second >>> 0).toString(16).padStart(8, '0')}`;
+}
+
+export function resolvePluginViewWindowScope(
+  location: Pick<Location, 'pathname' | 'search' | 'hash'>,
+): string {
+  const route = `${location.pathname || '/'}${location.search || ''}${location.hash || ''}`;
+  if (route.length <= MAX_INLINE_ROUTE_LENGTH && !route.includes('\0')) {
+    return `window:${route}`;
+  }
+  return `window:route:${hashRoute(route)}`;
+}
+
+export function resolvePluginRetainedViewKey(viewId: string, scopeId: string): string {
+  return JSON.stringify([viewId, scopeId]);
+}
+
+export function canRetainPluginViewInScope(viewScopeId: string, currentScopeId: string): boolean {
+  return viewScopeId === currentScopeId;
+}